Samuel:
We use and recommend "Chomerics" brand aluminum tape. This works very well,
and to be honest, we have not tested other brands. (I don't know if there
even are alternatives.)
Dave Fish provided availability info earlier.
"We like Al tape for securing thermocouples. KIC posted the process on
their
site. We buy tape from:
Chomerics Inc (T405 aluminum tape) 77 Dragon Ct # A Woburn, MA 01801 (781)
935-4850
CS Hyde Company 800-461-4161 / 847-265-6903 Fax: 800-441-8063
Dave Fish"
Greg Jones
KIC
----- Original Message -----
From: "Samuel.Ares" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, February 08, 2001 8:31 AM
Subject: Re: [TN] "Temprobe" thermocouples for profiling
> Phil,
>
> Does the Aluminum tape have to have certain characteristics or be from a
> certain manufacturer? We are presently using aluminum tape simply bought
at
> a hardware store, should we be using more specific tape whose adhesive if
> more resistant to temperature? Does such a product exist?
> Samuel Ares
> Process Engineering
> Leitch Technology Int.
> [log in to unmask] <mailto:[log in to unmask]>
> (416) 445-9640 x. 3395
>
> -----Original Message-----
> From: Phil Zarrow [SMTP:[log in to unmask]]
> Sent: Wednesday, February 07, 2001 7:57 PM
> To: [log in to unmask]
> Subject: Re: [TN] "Temprobe" thermocouples for profiling
>
> Howard and all -
> I benchmark tested the Temprobes a few years ago. I found the
trick
> to
> getting a reltatively accurate reading was to make sure that the
> probe tip is
> in firm and tangent contact with the solder joint. If it is not
> making good
> contact, as in only a portion of the tip on the joint due the
angle
> of the
> joint, you will get the noise you noticed (and a very inaccurate
> reading)l.
> Very similar to attaching a TC with kapton tape (another no--no) =
> you're
> reading air temp, IR, and not just the interconnection. Some
users
> have
> actually put thermal "grease" on top of the Temprobe/Joint
> interconnection
> (yuk).
> I've been very dubious of temporary probe attachment but, having
> worked in
> contract assembly, know the reality of some situations. The
> Temprobe can
> work but with the caveats. Greg Jones of KIC and others have
> experimented
> with aluminum tape with very good, reliable results. I have yet
to
> test this
> method thoroughly but Greg is very credible.
> Happy profiling!
> Phil Zarrow
> ITM Consulting
> Durham, Great White North of NH USA
> www.ITM-SMT.com
>
>
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